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Finding the Fourth Proportional to 122,119.60, 168,522.54 and 67,666.48

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Solution

The fourth proportional to 122,119.60, 168,522.54 and 67,666.48 is: 93,378.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,119.60 : 168,522.54 = 67,666.48 : x
  2. Step 2: Convert to fraction form
    122,119.60/168,522.54 = 67,666.48/x
  3. Step 3: Cross multiply
    122,119.60x = 168,522.54 × 67,666.48
  4. Step 4: Simplify right side
    122,119.60x = 11,403,327,082.46
  5. Step 5: Solve for x
    x = 11,403,327,082.46/122,119.60
  6. Step 6: Final answer
    x = 93,378.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.